Drive device for driving wiper arm fastened to wiper blade attached to window of motor car, has stop element to prevent movement of the crank, when output shaft is in position corresponding to end of pivot portion

摘要

The drive device (100) has output shaft (125) to drive the wiper arm (105). The output shaft is pivoted in a pivot portion (170) about a rotation axis (145). A fixed handle is placed on the output shaft for introducing a torque in the output shaft. The stop element (185) is mounted in the region of boundary of the crank (135) to prevent movement of the crank over a predetermined end (175,180) of the pivot portion, when the output shaft is in a position corresponding to one end of the pivot portion.